fix(upload): allow markdown (.md) file uploads

Fixes issue #3

markdown files were previously rejected due to MIME type mismatch.
This change updates file validation to rely on file extensions only, ensuring consistent
support across browsers (e.g., Safari/Windows where MIME may be missing).

Also updates the input element to use centralized allowed file constants.

Author: bekmuradov

dist/715.js

@@ -127,3 +127,27 @@ export const PLUGIN_SERVICE_RUNTIMES = [
 export const CHAT_SERVICE_API_BASE = 'http://127.0.0.1:8000';
 
 export const BRAINDRIVE_CORE_API = 'http://localhost:8005';
+
+// File Upload Constants
+export const maxFileSizeBytes = 10 * 1024 * 1024; // 10MB default
+
+export const allowedFileTypes = [
+  'application/pdf',
+  'application/msword',
+  'application/vnd.openxmlformats-officedocument.wordprocessingml.document',
+  'text/markdown',
+  'text/html',
+  'application/vnd.openxmlformats-officedocument.presentationml.presentation',
+  'application/vnd.ms-powerpoint',
+];
+
+export const allowedFileExtensions = [
+  '.pdf',
+  '.doc',
+  '.docx',
+  '.md',
+  '.html',
+  '.htm',
+  '.pptx',
+  '.ppt'
+];

dist/main.js

@@ -10,6 +10,7 @@ import {
 import { DocumentList } from './DocumentList';
 import { showToast } from '../helpers';
 import { DocumentService } from './DocumentService';
+import { allowedFileExtensions } from '../constants';
 
 export class DocumentManagerModal extends React.Component<DocumentManagerModalInjectedProps, DocumentManagerModalState> {
     // service instance
@@ -164,7 +165,7 @@ export class DocumentManagerModal extends React.Component<DocumentManagerModalIn
                                                 type="file"
                                                 ref={this.fileInputRef}
                                                 onChange={this.handleFileSelect}
-                                                accept=".pdf,.doc,.docx,.md,.html,.htm,.pptx,.ppt"
+                                                accept={allowedFileExtensions.join(',')}
                                                 className="hidden"
                                             />
                                             <button

src/constants.ts

@@ -66,19 +66,7 @@ export class DocumentService implements IDocumentService {
 
     public uploadFile = async (file: File, collectionId: string): Promise<void> => {
         // ... (File validation logic is now here) ...
-        const validation = validateFile(file, {
-            maxSizeBytes: 10 * 1024 * 1024,
-            allowedExtensions: [
-                '.pdf',
-                '.doc',
-                '.docx',
-                '.md',
-                '.html',
-                '.htm',
-                '.pptx',
-                '.ppt'
-            ],
-        });
+        const validation = validateFile(file);
         if (!validation.isValid) {
             showToast(validation.error!, 'error');
             return;

src/document-view/DocumentManagerModal.tsx

@@ -1,3 +1,5 @@
+import { allowedFileExtensions, maxFileSizeBytes } from "../constants";
+
 export interface FileValidationOptions {
   maxSizeBytes?: number;
   allowedTypes?: string[];
@@ -35,14 +37,10 @@ export function formatFileSize(bytes: number): string {
  */
 export function validateFile(
   file: File,
-  options: FileValidationOptions = {}
 ): FileValidationResult {
-  const {
-    maxSizeBytes = 10 * 1024 * 1024, // 10MB default
-    allowedTypes = ['application/pdf', 'application/msword', 'application/vnd.openxmlformats-officedocument.wordprocessingml.document'],
-    allowedExtensions = ['.pdf', '.doc', '.docx']
-  } = options;
-  
+  const maxSizeBytes = maxFileSizeBytes;
+  const allowedExtensions = allowedFileExtensions;
+
   // Check file size
   if (file.size > maxSizeBytes) {
     return {
@@ -51,14 +49,6 @@ export function validateFile(
     };
   }
 
-  // Check file type
-  if (allowedTypes.length > 0 && !allowedTypes.includes(file.type)) {
-    return {
-      isValid: false,
-      error: `File "${file.name}" has an unsupported type. Allowed types: ${allowedTypes.join(', ')}`
-    };
-  }
-  
   // Check file extension
   if (allowedExtensions.length > 0) {
     const fileExtension = getFileExtension(file.name);